Abrasion resistant polyurethane coating, coated article and method of manufacturing the same
AssigneePPG Industries Ohio, Inc.
InventorsRonald Li, Alexander Bimanand
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Abstract
A coated substrate including a 1 to 3 mils thick coating layer has a Bayer abrasion resistance value of less than 1% Haze after 600 cycles. The coating layer includes a reaction product of a coating composition including a polyester diol, a di-isocyanate, and a fluorocarbon-based additive. A method of forming the coating layer on the substrate includes mixing reactants including a polyester diol, a di-isocyanate and a flurocarbon-based additive to form a polyurethane coating composition; depositing the polyurethane coating composition on the substrate; and curing the polyurethane coating composition to form an abrasion resistant coating on the substrate.
Claims21
A coating composition comprising:
- a polyester diol;
- a di-isocyanate;
- and
- a fluorocarbon-based additive,
- wherein a 25 micron to 75 micron thick coating layer resulting from curing the coating composition has a Bayer abrasion resistance value of less than 1% Haze after 600 cycles.
A coated article, comprising:
- a substrate;
- and
- a 25 micron to 75 micron thick coating layer on the substrate, the coating layer comprising a polyurethane reaction product of reactants comprising:
- a polyester diol,
- a di-isocyanate, and
- a fluorocarbon-based additive,
- the coating layer having a Bayer abrasion resistance value of less than 1% Haze after 600 cycles.
A method for manufacturing an abrasion resistant substrate, the method comprising:
- mixing reactants comprising a polyester diol, a di-isocyanate and a fluorocarbon-based additive to form a polyurethane coating composition;
- depositing the polyurethane coating composition on the substrate;
- and
- curing the polyurethane coating composition to form an abrasion resistant coating on the substrate, the abrasion resistant coating having a thickness of 25 microns to 75 microns and a Bayer abrasion resistance value of less than 1% Haze after 600 cycles.
Dependencies are inferred from the claim text.